"Philotheo. I will do so. If the world is finite and if nothing lieth beyond, I ask you Where is the world? Where is the universe? Aristotle replieth… - Giordano Bruno

Eighthly, none of our sense-perceptions is opposed to the acceptance of infinity, since we cannot deny infinity merely because we do not sensibly perceive it; but since sense in itself is included in infinity, and since reason doth confirm infinity, therefore needs must that we posit infinity. Moreover, if we consider well, sense doth present to us an infinite universe. For we perceive an endless series of objects, each one contained by another, nor do we ever perceive either with our external or our internal sense, an object which is not contained by another or similar object.

Lastly before our eyes one thing is seen to bound another; air is as a well between the hills, and mountains between tracts of air, land bounds the sea and again sea bounds all lands; yet in truth there is nothing outside to limit the universe ... so far on every side spreads out huge room for things, free from limit in all directions everywhere. [6]

From the testimony of our sight then we should rather infer the infinite, since there is no object which doth not terminate in another, nor can we experience aught which terminateth in itself.

Passing alone to those realms
The object erst of thine exalted thought,
I would rise to infinity: then I would compass the skill
Of industries and arts equal to the objects. [18]
There would I be reborn: there on high I would foster for thee
Thy fair offspring, now that at length cruel
Destiny hath run her whole course
Against the enterprise whereby I was wont to withdraw to thee.
Fly not from me, for I yearn for a nobler refuge
That I may rejoice in thee. And I shall have as guide
A god called blind by the unseeing.
May Heaven deliver thee, and every emanation
Of the great Architect be ever gracious unto thee:
But turn thou not to me unless thou art mine.

Escaped from the narrow murky prison
Where for so many years error held me straitly,
Here I leave the chain that bound me
And the shadow of my fiercely malicious foe
Who can [19] force me no longer to the gloomy dusk of night.
For he who hath overcome the great Python [20]
With whose blood he hath dyed the waters of the sea
Hath put to flight the Fury that pursued me. [21]
To thee I turn, I soar, O my sustaining Voice;
I render thanks to thee, my Sun, my divine Light,
For thou hast summoned me from that horrible torture, [22]
Thou hast led me to a goodlier tabernacle; [23]
Thou hast brought healing to my bruised heart.

Thou art my delight and the warmth of my heart; [24]
Thou makest me without fear of Fate or of Death;
Thou breakest the chains and bars
Whence few come forth free.
Seasons, years, months, days and hours — The children and weapons of Time — and that Court
Where neither steel nor treasure [25] avail
Have secured me from the fury [of the foe].
Henceforth I spread confident wings to space;
I fear no barrier of crystal or of glass;
I cleave the heavens and soar to the infinite.
And while I rise from my own globe to others
And penetrate ever further through the eternal field,
That which others saw from afar, I leave far behind me. [26]

Ninthly, only verbally is it possible to deny infinite space, as is done by pertinacious fellows. For the rest of space where the universe is not, which is called void, where indeed it is pretended that nothing doth exist, cannot be conceived as without the capacity to contain no less a magnitude than that which it doth contain.

Tenthly, since it is well that this world doth exist, no less good is the existence of each one of the infinity of other worlds.

Eleventhly, the virtue of this world is not communicable to any other world soever, just as my being cannot be communicated to the being of this or of that man.